4-28
■ 3-wire operation
Set parameter 00-04 to 2 for 3-wire program initialization, multi-function input terminal S1 is set to run operation,
S2 for stop operation and S3 for forward/reverse command.
Note:
Terminal S1 must be closed for a minimum of 50ms to activate operation.
S1
S2
S3 Forward/Reverse
selection
COM
Operation
(normally open
Momentary switch)
Stop
(Normally Close
Momentary
switch)
Stop Command
(Off: Stop)
Run Command
(On:Run)
Figure 4.3.2 Wiring example of 3-wire
Time
Time
Time
Time
Run Command
Stop Command
Forward/Reverse
Command
Motor Speed
Off
Off
(Stop)
Off
(forward)
On (Reversal)
Stop
Forward
Reverse
Stop
Forward
On
>= 50ms
Figure 4.3.3 3-wire operation
00-03=2:
Communication control
The inverter is controlled by the RS-485 port. Refer to parameter group 9 for communication setup.
